Global Patent Index - EP 3502443 A1

EP 3502443 A1 20190626 - SHAFT ANTI-ROTATION DEVICE

Title (en)

SHAFT ANTI-ROTATION DEVICE

Title (de)

WELLENDREHSCHUTZVORRICHTUNG

Title (fr)

DISPOSITIF ANTIROTATION D'ARBRE

Publication

EP 3502443 A1 (EN)

Application

EP 19154308 A

Priority

  • US 201615180464 A
  • EP 17175671 A

Abstract (en)

A gas turbine engine includes a fan (42) and a first drive shaft (68) connected to the fan (42). A fan drive gear box (48) connects the first drive shaft (68) to a second drive shaft (40) and is configured to allow the first drive shaft (68) to rotate at a different speed than the second drive shaft (40). The gas turbine engine also includes a sprag clutch (64) disposed circumferentially around the first drive shaft (68) and connected to the first drive shaft (68). The sprag clutch (64) is configured to allow rotation of the first drive shaft (68) and the fan (42) in a first direction while prohibiting rotation of the fan (42) and the first drive shaft (68) in a second direction.

IPC 8 full level

F02C 7/36 (2006.01); F01D 21/14 (2006.01); F02K 3/06 (2006.01); F16D 41/07 (2006.01)

CPC (source: EP US)

F01D 21/14 (2013.01 - EP US); F01D 25/18 (2013.01 - US); F02C 7/06 (2013.01 - US); F02C 7/36 (2013.01 - EP US); F02K 3/06 (2013.01 - EP US); F04D 19/002 (2013.01 - US); F04D 29/054 (2013.01 - US); F04D 29/329 (2013.01 - US); F16D 41/07 (2013.01 - US); F05D 2220/32 (2013.01 - US); F05D 2260/4023 (2013.01 - US); F05D 2260/40311 (2013.01 - EP US); F05D 2270/116 (2013.01 - EP US); F16D 41/07 (2013.01 - EP)

Citation (applicant)

None

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 3258086 A1 20171220; EP 3258086 B1 20190130; EP 3502443 A1 20190626; US 10316855 B2 20190611; US 2017356452 A1 20171214

DOCDB simple family (application)

EP 17175671 A 20170613; EP 19154308 A 20170613; US 201615180464 A 20160613